Oil-well packer.



PATENTED APR. 28, 1908. A. COLLINGWOOD. OIL WELL PAGKBR M PLIGATION FILED MAY zo, 1907.

WITNESSES:

UNITED srATEs PATE-NT OFFICE.

ALFRED COLLINGWOOD, OF FRANKLIN, PENNSYLVANIA, ASSIGNOR OF'ONE-FOURTH TO JACOB N. HARLAN AND ONE-FOURTH TO EBNER HARLAN, OF FRANKLIN, PENNSYL- 'VANIA.

applicati@ med May 2o, 1907. seran No. 374,625.

To all 'whom 'it may concer/n:

Be it known that I, ALFRED CoLLING- WOOD, residing at Franklin, in the county of Venango and State of Pennsylvania, have 'invented certain new and usefulv Improvements in Oil\\"ell Packers, of which the following is a specification.

` My invention relates to certain new and useful improvements in oil well packers and the like, and is particularly designed for the purpose of shutting off water in the oil or any place in the well hole where 'the water may enter.

The invention also has for its object to provide a packer immediately above and immediatelybelow the point of entry of the water so as to save the use of the pipe or casing from the top of the packer to the surface of the earth.

In its generic nature, the invention embodies an improved form of packer adapted to be expanded to tightly embrace the walls of the Well and form a seal at such point.

In its more subordinate nature the invention embodies certain novel details of construction, combination and arrangement of parts, all of which will be first described in detail, and then be specifically pointed ont in the-appended claims, reference being had to the accompanying drawings. in which Figure 1, is a diagrammatic side elevation of my invention, showing the same applied for use, the well being shown in section. Fig. 2, is a central, vertical longitudinal section similar to Fig. 1, showing the position of the parts prior to having the acker expanded to tightly engage the sur ace of the well aperture. Fig. 3, is a similar View showing the packer expanded. Fig. 4, is a section on the line 44 of Fig. 3.

Referring now to the accompanying drawings in which like numerals and letters of reference indicate like arts in all of the figures it will be noticed t at 1 represents a casing which is of such length as to suit the requirements of the oil well 'and the casing 1 has its ends threaded at 1a and 1b to receive the collars 2.

The vpackers designated generally by A and B have their tubular ortions 3 threaded as at 3a -and screwed into the collars 2,l j-am nuts 4 being provided for purposes Specification of Letters Patent.

Ypacking 8.

OIL- WELL PAKER.

l Patented April 28, 1908.

slidable wedge sleeve 5 which has a beveled portion 5a and slotted sides'b toreceive the leaf springs 6 which are secured at .one en d by setscrews 6a or otherwise, and the' sleeve 5 has an internal bore or pocketn5c to receive tallow -or other suitable lubricant?, as indip -may be of any'approved materia'and the packing 8 has a conical portion 8a at its lower end to cooperate with the conical or beveled end 5a of the sleeve 5 whereby as thesleeve 5 is moved toward the jam nut 4 the packing 8 will be expanded to tightly it the walls of the well as shown in Figs. 1 and 3. The jam nut 4 serves to form an abutment' for the The tubular section 3 receives a collar 9 at the lower end, to which a bell member 10 is screwed in the usual manner. The bell member 10 serves to form a mouth to aid in directing the oil through the tubular members.

The upper packer B is of the same construction as the lower packer and comprises a tubular portion 3,'the longitudinally movable sleeve 5 which has a lubricant pocket 50, a` beveled or wedge end 5a and longitudinal grooves 5b for receiving the leaf springs 6 in a manner similar to the packer A. The sleeve portion 3 of the packer B is threaded as at 3b in a manner similar to thelower packers tubular section 3, except that the thread of the upper packer section B is left handed while the lower'thread 3*? of the handed.l l

11 designates the u wardly extending collar which is securely t readed on to the tube ortion 3 of the upper packer B and may be held with set screws 11L if so desired. vThe collar 11 is elongated in shape and is pro` vided with a bayonet slot 11b and a beveled mouth 11c to permit insertion of a pipe 12 having' lugs 12a b means of which pipe the packer is operated?.

In the practical application of my invention, the tubing casing 1lis made of sufficient. length to permit the packers A and B being held oneach side of the water area 13 of the well and preferably the packers A and B are arranged as closely to the water area as possible, thus making it necessary to use a comparativel short section of the tube 1.

In app ying my invention to the well, the tube and packers are lowered into the well as packer A is right shown in Fig. 2 and the tube" or pi e or rod 12 being secured in the sleeve or co lar 11 with its lug 12*i in the bayonet joint 11b.

As soon as the tube and packer has been lowered to a proper position the rod 12 is rotated, thus causing the tube and the tubular section 3 of thepacker to turn and force the sleeves 5 toward their respective packings 8 and thereby expanding the packings 8 until theytightly engage the sides of the well, it

being understood that theleaf springs 6 biting into the well wall or frictionally engaging same, will prevent the sleeves 5 from turning. After the parts have been positioned as shown in Fig. 1 and 3, the operating rod or pipe 12 isfre'moved from the bayonet slot in a manner vwell understood by rei'ernence to the drawings'and Withdrawn from the well.

From the fore oing description, taken in connection with t e accompanying drawings,

. it is thou ht the complete construction, operation an many advanta es of my invention will be readily understoo by those skilled in the art to which it appertains,

Having thus described my invention, what I claimv and desire to secure by Letters Patent, is 1 1. In a well packer, a tubular member, a pair of expansible packing members held thereon at suitable intervals apart, expanding sleeves for such packing members, andA means coperating with said expanding ySleeves for forcing said expanding sleeves A scribed. 1

3. In an apparatus of the class described, a pair of packers, each comprising a tubular portion having threaded ends, a jam-nut held on said tubular portion, an expansible packing a sleeve held on said tubular portion, an expandingsleeve also held on said tubular portionhaving a threaded engagement therewith, said exp anding sleeves each havin an internal lubricant receivin chamber, lea springs on the outside of sai expanding sleeves to'engage the well walls for preventing rotation of the sleeves, a tube section coupled with said packer tubular portions to form an extension thereof and another tube section connecting one tubular portion with the other, substantially as shown and described.

4. In an apparatus of the class described,

the tubular section 1, having threaded ends,

collars 2 screwed thereon, packers secured at n each end of said tubular member 1 and each comprising a tubular section 3 having a threaded end to coperate with said collars 2, an expansible packing sleeve carried on each of said tubular members 3l an expanding sleeve also carried oneach of said tubular members 3, means for holding said expanding sleeves from rotation, means whereby said tubular sections 3 may be rotated and means coperativelyconnecting said tubular sections 3' with said expanding sleeve whereby the rotation of the tubular section 3 will force the expanding sleeves toward the expansible packing sleeves to expand the same, substantially as shownanddescribed.

5. In an apparatus of the class described, a tubular section 1 having threaded ends,I collars 2 screwed thereon, packers secured at each end of said tubular section and each comprising the tubular section 3 having a threaded end'to coperate with said collars, an expansible packing-sleeve carried on each of saidy tubular sections 3, an expanding sleeve also carried by each of said tubular sections 3,A means for holding said expanding sleeves fromjrfot'ation, means for rotating said tubular sections 3 and means coperatively connecting said tubular sections 3 with said expanding sleeves whereby the rotation of the tubular sections 3 will force the expanding sleeves toward the expansible sleeves to expand the same, said rotating means including an upwardly extending tubular member 11 connectedwith one of said tubular' sections 3 and having a bayonet slot substantially as shown and described.

6. In an apparatus ofthe class described, a tubular section 1, having threaded ends, collars 2 screwed thereon, packers secured-.at

each end of said tubular member 1 and each comprising the tubular section 3 having a threaded end to coperate with said collars 2,

an expansible packing sleeve carried on each of said tubular members 3, an expanding sleeve also carried on each of said tubular members 3, means for holding said expanding sleeves from rotation, means whereby saidv tubular sections 3 may be rotated and means cooperatively connecting said tubular sections 3 with said expander sleeve whereby the rotation of the tubular section 3 will force the expanding sleeves toward the expansible packing sleeves lto expand the same, and a fluid directing bell 10 coupled with the tubular section 3 to one of said packers, substantially as shown and described. y

7. 4In a well packer for oil wells having water and oil areas, a tubular member having a pair of .spaced packers adapted to be held on either side of said water area, each of said packers including an expansible packing member and an expanding sleeve'therefor adapted to enterl the expansible packing vsaid expanding sleeves to expand their respective packing members, substantiallyas shown .and described.

8. In an apparatus of the class described, a pair of packers each comprising a tubular section and an expansible packing sleeve held thereon, and an expanding sleeve also held thereon, a nut for .holding such expansible sleeve in position, means coperatively connecting the expanding sleeve and the tubular section together, means whereby the tubular sections may berotated to force the expanding, sleeves into the, expandible packing sleeves to expand the same, means for holding such expanding sleeves from rotation While the tubular'section is being rotatedf'a tubular member connecting th'etubular sections of adjacent packers, substantially as shown and described.

9. In an apparatus of the class described, a pair of packers .each comprising a tubular section, an expansible packing sleeveheld thereon and an expanding ysleeve also held thereon, a nut for holding said expansible packing sleeve .in position, means coperativelyv connecting the expanding sleeve and the ,i

tubu ar'lsection togethenmeans whereby the tubular section may be rotated`to force thev expanding sleeve into the expansible packing sleeve to expand the same, means for holding said expanding sleeve from'rotation While the tubular section is being rotated, a tubular member connecting the tubular sections of adjacent packers and each of said expanding sleeves having an internal lubricant holding chamber to lubricate the tubularsections of the packer asthe expanding sleeve is moved thereon, 1 substantia ly as shown and described. f

ALFRED ooLLINGWooD.

Witnesses:

WM. J. WRIGHT,

ROBERT SPEER. 

